package com.twelvemonkeys.util.convert;
import com.twelvemonkeys.lang.ObjectAbstractTestCase;
import com.twelvemonkeys.lang.Validate;
import org.junit.Test;
import java.util.Arrays;
import static org.junit.Assert.*;
/**
* PropertyConverterAbstractTestCase
* <p/>
*
* @author <a href="mailto:harald.kuhr@gmail.com">Harald Kuhr</a>
* @author last modified by $Author: haku $
* @version $Id: //depot/branches/personal/haraldk/twelvemonkeys/release-2/twelvemonkeys-core/src/test/java/com/twelvemonkeys/util/convert/PropertyConverterAbstractTestCase.java#2 $
*/
public abstract class PropertyConverterAbstractTestCase extends ObjectAbstractTestCase {
protected Object makeObject() {
return makePropertyConverter();
}
protected abstract PropertyConverter makePropertyConverter();
protected abstract Conversion[] getTestConversions();
@Test
public void testConvert() {
PropertyConverter converter = makePropertyConverter();
Conversion[] tests = getTestConversions();
for (Conversion test : tests) {
Object obj;
try {
obj = converter.toObject(test.original(), test.type(), test.format());
assertEquals(String.format("'%s' converted to incorrect type", test.original()), test.type(), obj.getClass());
if (test.type().isArray()) {
assertArrayEquals0(String.format("'%s' not converted", test.original()), test.value(), obj);
}
else {
assertEquals(String.format("'%s' not converted", test.original()), test.value(), obj);
}
String result = converter.toString(test.value(), test.format());
assertEquals(String.format("'%s' does not match", test.converted()), test.converted(), result);
obj = converter.toObject(result, test.type(), test.format());
assertEquals(String.format("'%s' converted to incorrect type", test.original()), test.type(), obj.getClass());
if (test.type().isArray()) {
assertArrayEquals0(String.format("'%s' did not survive round trip conversion", test.original()), test.value(), obj);
}
else {
assertEquals(String.format("'%s' did not survive round trip conversion", test.original()), test.value(), obj);
}
}
catch (ConversionException e) {
failBecause(String.format("Converting '%s' to %s failed", test.original(), test.type()), e);
}
}
}
private static void assertArrayEquals0(final String message, final Object left, final Object right) {
Class<?> componentType = left.getClass().getComponentType();
if (componentType.isPrimitive()) {
if (int.class == componentType) {
assertArrayEquals(message, (int[]) left, (int[]) right);
}
else if (short.class == componentType) {
assertArrayEquals(message, (short[]) left, (short[]) right);
}
else if (long.class == componentType) {
assertArrayEquals(message, (long[]) left, (long[]) right);
}
else if (float.class == componentType) {
assertArrayEquals(message, (float[]) left, (float[]) right, 0f);
}
else if (double.class == componentType) {
assertArrayEquals(message, (double[]) left, (double[]) right, 0d);
}
else if (boolean.class == componentType) {
assertTrue(message, Arrays.equals((boolean[]) left, (boolean[]) right));
}
else if (byte.class == componentType) {
assertArrayEquals(message, (byte[]) left, (byte[]) right);
}
else if (char.class == componentType) {
assertArrayEquals(message, (char[]) left, (char[]) right);
}
else {
fail(String.format("Unknown primitive type: %s", componentType));
}
}
else {
assertArrayEquals(message, (Object[]) left, (Object[]) right);
}
}
private static void failBecause(String message, Throwable exception) {
AssertionError error = new AssertionError(message);
error.initCause(exception);
throw error;
}
public static final class Conversion {
private final String strVal;
private final Object objVal;
private final String format;
private final String convertedStrVal;
public Conversion(String pStrVal, Object pObjVal) {
this(pStrVal, pObjVal, null);
}
public Conversion(String pStrVal, Object pObjVal, String pFormat) {
this(pStrVal, pObjVal, pFormat, pStrVal);
}
public Conversion(String pStrVal, Object pObjVal, String pFormat, String pConvertedStrVal) {
Validate.notNull(pStrVal, "strVal");
Validate.notNull(pObjVal, "objVal");
Validate.notNull(pConvertedStrVal, "convertedStrVal");
strVal = pStrVal;
objVal = pObjVal;
format = pFormat;
convertedStrVal = pConvertedStrVal;
}
public String original() {
return strVal;
}
public Object value() {
return objVal;
}
public Class type() {
return objVal.getClass();
}
public String format() {
return format;
}
public String converted() {
return convertedStrVal;
}
}
}